| 摘要 |
PROBLEM TO BE SOLVED: To provide a powered type suction device configured to avoid a phenomenon that sucked objects are caught between an inner wall of a fan case and a fan. SOLUTION: An invasion restraining section 30 for restraining an invasion into a gap G between an inner wall of a fan case 14 and a fan 10 is formed, in a portion around a suction port 14A, so that the sucked object which is going to invade the gap G is returned to the suction port 14A. Accordingly, the sucked object which has been returned to the suction port 14A will be sucked without being caught in the gap G changing a guide path. COPYRIGHT: (C)2009,JPO&INPIT
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